Cultivator



(No Model.) I

0. S. PRESBRBY & A. NALL GULTIVATOR. No. 312,382. v Patented Feb. 17,1885.

Zyci WITNESSES INVENTOR ATTORNEYS;

UNTTED STATES PATENT Urrrcn.

OLIVER S. PRESBREY AND AARON NALL, OF MORIAH, NEW'YORK.

CULTlVATOR SPECIFICATION forming part of Letters Patent- No. 312,382,dated February 17, 1885.

Application filed June 10, 1884. (No mode..)

To all whom it may concern:

Be it known that we, OLIVER S. PREsBREY and AARON NALL, of Moriah, Essexcounty,

New York, have invented a new and useful .Improvement in Cultivators, ofwhich the following is a full, clear, and exact description.

This invention pertains to improvements in cultivators; and it consistsof the detailed construction and combination of parts, substantiallyashereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side perspective view of a cultivator of ourimprovedconstruction. Fig. 2 is a side view, and Fig. 3 aback view, partly insection, of one tooth.

The frame of the cultivator consists of two rods or tubes, a a,connected at their forward ends and sustained a proper distance apart atthe rear by braces 11, that also support the handle. Upon the rods toare clamps c, which are bands or collars with open flanged ends thatreceive a screw, f, whereby the clamps are tightened on the rods. Theclamps are formed with lugs or flanges d, to which the teeth 6 areattached by bolts g, and in or der to hold the teeth firmly up to theirwork with one screw in each the flanges (Z are formed with beveledrecesses and the teeth with tapering lugs 71', that are drawn tightlyinto the recesses by the nuts, so that there shall be friction enough tohold the teeth or dinarily; but theteeth may swing back when they strikea large stone or other obstruction. This saves the teeth from breakage.By loosening the clamps a they can be turned on the frame to swing theteeth up sidewise, so that one or more teeth can thus be thrown out ofaction. The clamps can also be moved endwise of the rods for adjustmentof the teeth to the workas, for instance, several of them may be movedback into a group to form a shove1-plow.

The teeth may be attached to the frame direct by thefriction connectioninstead of using a clamp. We do not limit ourselves in that respect.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent In a cultivator, the combination, with thecylindric beam a, of the clamping band or collar 0, with its flangedends connected or screwed together, the lower side of said band orcollar having aflange, cl, with one side stepped and recessed to receivea beveled lug, h, of the standard 6, said flange dand standard beingconnected together by a pivotbolt, 9, substantially as shown anddescribed.

OLIVER S. PRESBREY. AARON NALL.

Witnesses:

WILLIAM H. CARR, lVIARK E. CARR.

